IS 2720-29 (1975): Methods of Test for Soils, Part 29 ...
sand replacement method Part XXXIII Determination of the density in-place by the ring and water replacement method Part XXXIV Determination of density of soil in-place by the rubber-baloonmethod 0.1.1 This standard was first published in 1966. In this revision, the test has been made applicable to soil 90 percent of which passes the 4'75-mm IS ...